condition	mean	min	max
4 h after light	4.49231	3.72662	5.258
8 h after light	4.98273	4.26003	5.70543
12 h after light	5.30882	3.71632	6.90132
4 h after dark	4.919315	3.24824	6.59039
8 h after dark	4.21217	3.90668	4.51766
12 h after dark	6.76382	6.47643	7.05121